[Bug tree-optimization/104445] [12 Regression] ICE in vect_create_partial_epilog, at tree-vect-loop.cc:5098

[rguenther at suse dot de via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104445

--- Comment #8 from rguenther at suse dot de <rguenther at suse dot de> ---
On Wed, 9 Feb 2022, ubizjak at gmail dot com wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104445
> 
> --- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> ---
> (In reply to Richard Biener from comment #6)
> > We are missing vec_extractv2sisi or vec_extractv8qiv4qi, with -mno-mmx 
> > -mavx.
> > It seems we have addv2si3 available though.
> 
> vec_extractv2sisi is available in mmx.md even with -mno-mmx:
> 
> (define_expand "vec_extractv2sisi"
>   [(match_operand:SI 0 "register_operand")
>    (match_operand:V2SI 1 "register_operand")
>    (match_operand 2 "const_int_operand")]
>   "TARGET_MMX || TARGET_MMX_WITH_SSE"
> {
>   ix86_expand_vector_extract (TARGET_MMX_WITH_SSE, operands[0],
>                               operands[1], INTVAL (operands[2]));
>   DONE;
> })

But I think with -m32 we have !TARGET_MMX_WITH_SSE